I have fitted factory integrated. I have always hated under dash and after market AC in HQ-WB. No doubt they work ok but I can’t stand the idea of punching holes in the floor pan for drain hoses and modifying factory wiring etc. when you try to fix a car after these installation you just wonder why they went down that road.
Remember these cars are not daily drivers that will end up in a car yard with AC written across the windscreen as a sales incentive. That’s long gone, these days the draw card is originality. I know the show scene in vans has kicked off again and people are going down the modification route, but that market is minuscule in an already small market.